A bit of cleanup for the WhirlyGlobe App store submission.
First cut at Maply.
Merge branch 'master' into develop

Conflicts:
	WhirlyGlobeSrc/WhirlyGlobeLib/WhirlyGlobeLib.xcodeproj/project.pbxproj
Added support for zooming past where we could before.
Extensive changes to support Maply objects.  WhirlyGlobe component tester now working again.
Renamed things and put the Maply Component together.  Image paging now working.
Turned z buffer off by default for Maply.  2D labels and markers now working.  3D markers now working.
Selection now working for Maply.
Added a great circle shape.  Upgraded to Xcode 4.5 and now generating iPhone5 compatible binaries.  Labels support screen offsets.  Added shape layer to support a variety of 3D shapes on the globe or map.  Vector layer can now do sampling itself for linears on a globe.  Messing with retina support.
A whole bunch of maply source was missing for some reason.
Turned on retina support.  Added a MaplyVectorDatabase hooked up to the internal vector database.
Add selectability for labels and markers (so it can be turned off).  Added a utility to convert geocoords to 3D display coordinates.  Useful for doing 3D display math with the component.
Added support for free range linear features in the Component.  Put selectability in vectors.  Implement spheres in the shape layer.  Added a pole fix to the quad tile loader, turned off by default.
Turned on poles by default for network tiles.
Fixed a fade bug in the shape layer.
Missing data files for tester.
Merge from master branch changes.  This includes the pole update for spherical mercator data sets and the extents fix.  Fixed justification on text in component.  Added another helper function for screen/coordinate conversion.
Added stats output to the scene for debugging.  Mem manager for OpenGL resources now keeping smaller free lists.  Fixed a retain problem in the layer view watcher.  Documentation fixes.  Textures can now round up or down, depending on input image size.  Tiles generated by quad tile loader can have visibility range.  Fixed a logic problem in the LayerViewWatcher.
Added a start image for the iphone5.
Split OpenGL ES base code out from 1.1 specific code.  In preparation for OpenGL ES 2.0 support.